<template>
  <div class="login_container">
      <div class="login_box">
          <!-- 头像区域 -->
          <div class="avatar_box">
              <img src="../assets/logo.png" alt="">
          </div>
          <!-- 登录表单区域 -->
          <el-form ref="loginFormRef" :model="loginForm" label-width="0px" :rules="loginFormRules" class="login_form">
              <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="el-icon-user-solid"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" type="password" prefix-icon="el-icon-lock"></el-input>
                </el-form-item>
                <!--按钮区域 -->
                <el-form-item class="btns">
                    <el-button type="primary" @click="Login">登录</el-button>
                    <el-button type="info" @click="resetLoginFrom">重置</el-button>
                </el-form-item>
          </el-form>
      </div>
  </div>
</template>

<script>
export default {
    data() {
      return {
        loginForm: {
          username:'admin',
          password:'123456'
        },
        // 表单的验证规则对象
        loginFormRules:{
            // 验证用户名是否合法
            username:[
                { required: true, message: '请输入登录名称', trigger: 'blur' },
                { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
            ],
            // 验证密码是否合法
            password:[
                { required: true, message: '请输入登录密码', trigger: 'blur' },
                { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
            ]
        }
      }
    },
    methods:{
        // 重置登录表单
        resetLoginFrom(){
            this.$refs.loginFormRef.resetFields();
        },
        Login(){
            this.$refs.loginFormRef.validate(async vaild =>{
                if(!vaild) return;
                const {data: res} = await this.$http.post('login',this.loginForm);
                if(res.meta.status !== 200)
                    return this.$message.error(res.meta.msg);
                this.$message.success("登陆成功")
                window.sessionStorage.setItem('token',res.data.token);
                this.$router.push('/home')
            });
        }
    }
}
</script>

<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
}
 .avatar_box{
    padding: 10px;
    height: 130px;
    width: 130px;
    border-radius: 50%;
    border: 1px solid #eee;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    background-color: #fff;
    transform: translate(-50%,-50%);
    img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
    }      
 }

 .btns{
     display: flex;
     justify-content: flex-end;
 }
 .login_form{
     position: absolute;
     bottom: 0;
     width: 100%;
     padding: 0 20px;
     box-sizing: border-box;
 }
</style>
